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ESE 2022 ME - Technical Quiz 22
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Question 1
If the equivalent load in case of radial ball bearing is 500 N and the basic dynamic load rating is 62500 N, then 
life of this bearing is
life of this bearing is Question 2
The figure below shows a steel rod of 25 mm2 cross sectional area. It is loaded at four points, K, L, M and N. Assume Esteel =200GPa.The total change in length of the rod due to loading is
Question 3
The shell of a boiler is 2 m in diameter and the plates are 2 cm thick. By how much % the working pressure will be reduced if the efficiency of the joint is 80% as compared to 100% efficiency
[Assume safe working stress for the shell plates as 70 MPa]
[Assume safe working stress for the shell plates as 70 MPa]
Question 4
GO and NO-GO plug gauges are to be designed for a hole 
mm. Gauge tolerances can be taken as 10% of the hole tolerance. The sizes of GO and NO-GO gauge will be respectively(On the basis of workshop gauge)______.
Question 5
Under logarithmic decrement, the amplitude of successive vibrations are
Question 6
The project activities, precedence relationships and durations are described in the table. The critical path of the project is
Question 7
Match List-I (type of gear failure) with List-II (Reasons) select the correct answer using the code given below the lists:
List-I
A). Scoring
B). Pitting
C). Scuffing
D). Plastic flow
List-II
1). Oil film breakage
2). Yielding of surface under heavy loads
3). Cyclic loads causing high surfaces stress
4). Insufficient lubrication
List-I
A). Scoring
B). Pitting
C). Scuffing
D). Plastic flow
List-II
1). Oil film breakage
2). Yielding of surface under heavy loads
3). Cyclic loads causing high surfaces stress
4). Insufficient lubrication
Question 8
A simple spring-mass vibrating system has a natural frequency of N. If the spring stiffness is halved and the mass is doubled, then the natural frequency will become
Question 9
If young’s modulus of elasticity of a material is 140 GPa and Bulk modulus is 70 GPa, what will be the Poisson’s ratio (μ)?
Question 10
Which of the statements given below is/are correct ?
(1) Pressure angle is defined as the angle between the direction of follower movement & the normal to the base curve at any point.
(2) In case of radial translating roller follower, parabolic motion of the follower is very appropriate for high speed cams.
(1) Pressure angle is defined as the angle between the direction of follower movement & the normal to the base curve at any point.
(2) In case of radial translating roller follower, parabolic motion of the follower is very appropriate for high speed cams.
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ESE & GATE MEGeneralOct 12ESE & GATE ME
